HD-3ADual-Sided Headset with 21dB NRR, Flexible Dynamic Boom Mic, & A4F ConnectorThe HD-3A is a dual-sided monaural hearing protector type headset
HD-3A SpecicationsConnector TerminationXLR 4-pin Female coiled cordTypeDual Sided MonauralMic TypeDynamic Noise-CancelingMic Sensitivity-65dBV/Pa @1c
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